Population 5,033 · Census ACS 2020–24
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Population and households in Sea Cliff
Household size in Sea Cliff
| Period | Sea Cliff | New York area | New York | U.S. |
|---|---|---|---|---|
| 2006–10 | 2.64 | 2.79 | 2.68 | 2.68 |
| 2010–14 | 2.52 | 2.85 | 2.72 | 2.73 |
| 2015–19 | 2.63 | 2.82 | 2.69 | 2.71 |
| 2020–24 | 2.83 | 2.79 | 2.65 | 2.65 |
| Change | +0.19 | −0.00 | −0.03 | −0.03 |
The typical household in Sea Cliff holds 2.83 people, more than the U.S. average of 2.65. Since 2006–10, household size has climbed from 2.64, even as the national average fell. Households are largest in the east and smallest in the north.
Household size: the average number of people living in each occupied home. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25010).
Median age in Sea Cliff
| Period | Sea Cliff | New York area | New York | U.S. |
|---|---|---|---|---|
| 2006–10 | 45.1 | 38.0 | 38.3 | 37.7 |
| 2010–14 | 46.6 | 38.7 | 39.0 | 38.6 |
| 2015–19 | 48.8 | 39.8 | 40.2 | 39.6 |
| 2020–24 | 43.1 | 40.4 | 40.8 | 40.1 |
| Change | −2.0 | +2.4 | +2.5 | +2.3 |
Sea Cliff skews older than the country: its median age is 43.1, against 40.1 nationally. Since 2006–10, the median age has dropped from 45.1, even as the national median rose. The youngest areas are in the south, the oldest in the northwest.
Median age: the age that splits residents into two equal halves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B01002).
Single-parent households in Sea Cliff
| Period | Sea Cliff | New York area | New York | U.S. |
|---|---|---|---|---|
| 2006–10 | 8.0% | 13.1% | 13.1% | 12.3% |
| 2010–14 | 8.3% | 12.8% | 12.7% | 12.3% |
| 2015–19 | 4.7% | 11.4% | 11.6% | 11.6% |
| 2020–24 | 4.3% | 11.6% | 11.6% | 11.6% |
| Change | −3.7 pts | −1.5 pts | −1.5 pts | −0.6 pts |
Single parents head only 4.3% of households in Sea Cliff, well below the national share of 11.6%. Since 2006–10, the single-parent share has fallen 3.7 points, a much bigger shift than nationally. Of the 488 New York cities with 5,000+ people, only 34 have a lower share of single-parent households.
Single-parent households: households where one adult with no spouse present lives with children under 18. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B11003).
Housing in Sea Cliff
Renters in Sea Cliff
| Period | Sea Cliff | New York area | New York | U.S. |
|---|---|---|---|---|
| 2006–10 | 21.3% | 47.1% | 44.8% | 33.3% |
| 2010–14 | 26.7% | 48.7% | 46.2% | 35.6% |
| 2015–19 | 23.6% | 48.8% | 46.2% | 36.0% |
| 2020–24 | 22.7% | 48.6% | 45.7% | 34.8% |
| Change | +1.4 pts | +1.5 pts | +0.9 pts | +1.5 pts |
Only 22.7% of households in Sea Cliff rent their homes, far below the national share of 34.8%, so most residents are owners who tend to stay put. Among homeowners, 30.1% have no mortgage at all, below the national share of 39.8%. Rentals cluster in the north; owners are most common in the southeast. The renter share has edged up 1.4 points since 2006–10, mirroring the country.
Renters: occupied homes that are rented rather than owned. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25003).
Vacant homes in Sea Cliff
| Period | Sea Cliff | New York area | New York | U.S. |
|---|---|---|---|---|
| 2006–10 | 5.9% | 9.1% | 10.3% | 11.4% |
| 2010–14 | 1.2% | 9.0% | 10.4% | 11.4% |
| 2015–19 | 9.0% | 9.1% | 11.0% | 11.1% |
| 2020–24 | 9.4% | 7.9% | 9.7% | 9.6% |
| Change | +3.5 pts | −1.2 pts | −0.6 pts | −1.8 pts |
About as many homes sit empty in Sea Cliff as nationally: 9.4%, against 9.6%. The rate is higher than in the New York area overall (7.9%). Vacancy is up 3.5 points from 2006–10, even as the national rate fell.
Vacant homes: homes with no one living in them, including vacation homes and homes for sale or rent. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25002).
Age of homes in Sea Cliff
| Period | Sea Cliff | New York area | New York | U.S. |
|---|---|---|---|---|
| 2006–10 | 1940 | 1957 | 1956 | 1974 |
| 2010–14 | 1942 | 1958 | 1957 | 1975 |
| 2015–19 | 1938 | 1959 | 1958 | 1977 |
| 2020–24 | 1941 | 1962 | 1961 | 1980 |
| Change | +1 | +5 | +5 | +6 |
The housing in Sea Cliff is old by national standards: the median home dates to 1941, against 1980 for the U.S., so buyers will find more older houses, some of them due for updates. The newest homes are mostly in the southeast, the oldest in the southwest. Of the 488 New York cities with 5,000+ people, only two have older homes.
Age of homes: the year that splits the housing stock into older and newer halves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25035).
Rent in Sea Cliff
| Period | Sea Cliff | New York area | New York | U.S. |
|---|---|---|---|---|
| 2006–10 | $1,485 | $1,268 | $1,095 | $965 |
| 2010–14 | $1,515 | $1,377 | $1,201 | $1,040 |
| 2015–19 | $2,302 | $1,645 | $1,426 | $1,213 |
| 2020–24 | $2,316 | $2,060 | $1,794 | $1,571 |
| Change | +$831 | +$792 | +$698 | +$606 |
A typical rental in Sea Cliff costs $2,316 a month with utilities, well above the national median of $1,571. Rents are up $831 a month from 2006–10, a 56% rise, a slower climb than the nation's. Rent takes 34.6% of the typical renter's income, well over the 30% mark often used to define affordable rent, so many renters here are stretched.
Rent: monthly rent plus the utilities renters pay themselves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25064).
Education in Sea Cliff
Bachelor's degrees in Sea Cliff
| Period | Sea Cliff | New York area | New York | U.S. |
|---|---|---|---|---|
| 2006–10 | 58.4% | 35.0% | 31.9% | 28.4% |
| 2010–14 | 65.0% | 36.7% | 33.4% | 29.6% |
| 2015–19 | 65.9% | 39.9% | 36.2% | 32.1% |
| 2020–24 | 61.9% | 43.6% | 39.8% | 35.6% |
| Change | +3.4 pts | +8.6 pts | +8.0 pts | +7.2 pts |
Sea Cliff is highly educated: just over six in ten adults 25 and older (61.9%) hold at least a bachelor's degree, far above the national share of 35.6%. The share with a degree is up 3.4 points from 2006–10, as it has nationally. College graduates are most concentrated in the southwest and least in the southeast.
Bachelor's degrees: adults 25 and older with a bachelor's degree or higher. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B15003).
High school graduates in Sea Cliff
| Period | Sea Cliff | New York area | New York | U.S. |
|---|---|---|---|---|
| 2006–10 | 94.4% | 83.7% | 84.0% | 84.9% |
| 2010–14 | 97.3% | 84.6% | 84.9% | 86.1% |
| 2015–19 | 97.0% | 86.2% | 86.5% | 87.7% |
| 2020–24 | 97.3% | 86.9% | 87.3% | 89.3% |
| Change | +3.0 pts | +3.3 pts | +3.3 pts | +4.3 pts |
Finishing high school is nearly universal in Sea Cliff: 97.3% of adults 25 and older have a diploma or equivalent, well above the national rate of 89.3%. Since 2006–10, the share with a diploma has risen 3.0 points, in line with the national trend. Of the 488 New York cities with 5,000+ people, only 39 have a higher share of high school graduates.
High school graduates: adults 25 and older with a high school diploma, GED or more. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B15003).
Jobs in Sea Cliff
| Period | Sea Cliff | New York area | New York | U.S. |
|---|---|---|---|---|
| 2006–10 | 6.4% | 7.9% | 7.7% | 8.1% |
| 2010–14 | 4.2% | 9.5% | 9.2% | 9.4% |
| 2015–19 | 1.8% | 5.7% | 5.7% | 5.6% |
| 2020–24 | 11.5% | 6.9% | 6.6% | 5.4% |
| Change | +5.0 pts | −0.9 pts | −1.2 pts | −2.7 pts |
Finding work has been harder in Sea Cliff: 11.5% of the labor force was out of work and looking, well above the national rate of 5.4%. Only one other New York city with 5,000+ people has higher unemployment. Unemployment has risen 5.0 points since 2006–10, even as the national rate fell.
Unemployment: people looking for work as a share of everyone working or looking. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B23025).
Sea Cliff compared with nearby cities
| City | Household size | Median age | Single parents | Renters | Vacant homes | Median year built | Median rent | Bachelor's degree | High school diploma | Unemployment |
|---|---|---|---|---|---|---|---|---|---|---|
| Sea Cliff | 2.83 | 43.1 | 4.3% | 22.7% | 9.4% | 1941 | $2,316 | 61.9% | 97.3% | 11.5% |
| Glen Head | 2.66 | 49.3 | 9.5% | 9.2% | 6.0% | 1959 | $2,474 | 62.7% | 94.2% | 1.9% |
| Glenwood Landing | 2.37 | 53.0 | 6.5% | 26.3% | 3.4% | 1948 | $2,506 | 75.3% | 99.0% | 3.0% |
| Glen Cove | 2.63 | 42.9 | 14.2% | 48.5% | 3.7% | 1964 | $2,425 | 41.6% | 86.1% | 4.6% |
| Roslyn Harbor | 2.38 | 56.2 | 3.4% | 35.9% | 1.0% | 1952 | $2,368 | 80.7% | 98.4% | 4.9% |
| Old Brookville | 3.07 | 49.4 | 4.7% | 14.3% | 3.0% | 1975 | $2,038 | 77.0% | 96.0% | 3.6% |
| Port Washington | 2.95 | 43.4 | 6.2% | 23.5% | 7.2% | 1955 | $2,489 | 69.7% | 94.7% | 3.3% |
| Greenvale | 3.33 | 45.9 | 10.7% | 8.2% | 2.0% | 1968 | $2,156 | 63.9% | 95.3% | 8.2% |
| Baxter Estates | 2.69 | 40.8 | 6.3% | 28.9% | 7.5% | 1951 | $2,067 | 64.7% | 96.2% | 3.1% |
| Port Washington North | 2.48 | 49.0 | 0.7% | 31.7% | 2.2% | 1968 | $2,736 | 65.8% | 97.8% | 5.1% |
| Flower Hill | 3.01 | 44.7 | 3.5% | 6.0% | 4.7% | 1962 | $2,043 | 83.0% | 99.2% | 5.5% |
All figures 2020–24.
Cities with similar populations: Hollis Center, ME · Homer, NY · Homer, LA · Homer City, PA · Homedale, ID · Homeacre-Lyndora, PA · Holton, KS · Holt, MO · Holt, AL · Hollywood, SC
About these numbers
Every figure on this page is a BestNeighborhood calculation from the Census Bureau's American Community Survey (ACS), built up from the Census block groups that make up Sea Cliff. Each ACS 5-year release pools five years of responses; this page shows the last 15 releases, 2006–10 through 2020–24. Neighboring releases share four of their five years, so they move gradually and small changes between them are within the survey's margin of error; in small places the lines can jump from one release to the next for the same reason. The maps show the same measures for each neighborhood, ranked against the whole country.
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